Possible Clues:

• Paid for by revolutionary without a break?
• One after another
• Continually busy working with the revolutionary socialist
• In succession to throne, oddly, viscount's last
• Supported by article, left-winger's in a row
• Going at a moderate pace one after another
• May perhaps head off, having upset tart in a row
• Like a horse ride without a break?
• Being hotter, not terribly busy
• One after the other at speed